Algebra Help!!

Can anyone help me simplifying these Rational algebraic expressions?

Thanks in advance!

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http://phanxgames.com/forum/uploads/...0_230356_2.PNG

http://phanxgames.com/forum/uploads/...0_230406_3.PNG

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http://phanxgames.com/forum/uploads/...0_230434_5.PNG

We aren't here to do your homework.
http://cboard.cprogramming.com/annou...ouncementid=39

However I will say to remember how to factor the difference of two squares and plain old factoring.